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MACHINE FOR DRESSING THE SURFACES 0F METAL ARTICLES. No. 362,054.

Patented May 3, 1887.

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MACHINE FOR DRESSING THE SURFACES OF METAL ARTICLES. No. 362,054.Patented May 3, 1887;

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MACHINE FOR DRESSING THE SURFACES OF METAL ARTICLES.

No. 362,054. Patented May 3, 1887.

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T. BAUMQ MACHINE FOR DRESSING THE SURFACES 0P METAL ARTICLES. No;362,054. Patented May 3,.188-7.

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.No. 362,054. Patented May 3, 1887.

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UNITED STATES PATENT OFFICE.

- THEODOR BAUM, OF BERLIN, GERMANY.

MACHINE FOR DRESSING THE SURFACES OF METAL ARTICLES.

SPECIFICATION forming part of Letters Patent No. 362,054, dated May 3,1887.

Application filed November 16, 1885. Serial No. 182,960. (No model.)Patented in Germany October 5, 1885, No. 36,621 in Austria Hungal-yOctober 10, 1885, No. 37,153 and No. 16,297; in Sweden October 24, 1885,No. 528; in England October .28, 1885, No. 12,952; in Belgium October31, 1885, No. 70,686,- in France October 31, 1885, No. 171,980, and inCanada December 3, 1885,

To aZZ whom it may concern.-

Be it known that I, THEODOR BAUM, of the city of Berlin, in the Kingdomof Prussia and German Empire, have invented certain new and usefulImprovements in Machines for Simultaneously Operating on or TreatingSeveral Surfaces in Horizontal and Vertical Direction, of which thefollowing is a specification.

My invention relates to a new machine by means of which several surfacesof regular prismatical bodiessuch as screw-nuts, bolts, fittings, aswell as cooks, water-gages,,&c.may simultaneously be operated upon, bothin a horizontal as Well as vertical direction; and it consists moreparticularly in the employment of a number of cutter-holders, whichoperate together in an exact and accurate manner and can simultaneouslybe put into operation.

The chief advantage which this machine has over all other existingmachines is based upon the application as vertical and horizontalplaning or shaping machine in which several objectssuch as screw-nuts,for instance-can be simultaneously operated upon, whereby the mechanismeffecting the planing in a horizontal direction may also be arranged,together with those parts effecting the planing in a vertical direction,while one or the other of these parts may be put out of function,according to the kind of work which the machine may be Separatemachines, however, may be employed for either of these two kinds ofwork, so that one machine will only do one kind of work, withoutdeparting from the tenor of my invention, as with any new constructionany desired mechanismfor imparting motive power may be employed.

In the accompanying drawings my invention is represented in a machinefor planing in a horizontal and in a vertical direction, but notcombined with each other, in order to better illustrate the operation ofthe parts.

Figure 1 represents a top view of a machine for planing hexagonalscrew-nuts, in which, for the better understanding, parts of thecutter-holders are removed. Fig. 2 is aside view and a partialcross-section. Fig. 3 is the front view of one of the tool-supports ofthe machine. Fig. 4 is a side View of a verticalfplaning machine, thecutter-holders and their parts being shown in section. Fig. 5 is a sideview of a horizontal planing machine, the supports of which are shown inelevation. Fig. 6 is a horizontal section of Fig. 4. on the line A B,and Fig. 7 is a horizontal section of Fig. 5 on the line C D.

The supports 1), with wedgeshaped grooves, are screwed onto thehexagonal baseplate a, which said supports or standards carry the slidesa, and can be adjusted in lateral direction. These slides carry thecutter or tool holders 6!, which, with their cutters 6, can be adjustedin a central direction, and are fixed or kept in position by a screw, f,the nut of which is omitted in the drawings. The cutters e are screwedor fixed in the cutter-holders by pressure-screws 9, while theadjustment of said cutters in the slide 0 is effected by a piece ofmetal, h, screwed to the front lug of the cutter-holder, which saidpiece It catches into a slot, 6, of the slide, and is operated by ascrew, it, which is arranged in the slide 0.

A tube, Z, is'arranged in the base-plate a,

and carries at its upper end a disk, m, pro

vided with a number of recesses, a, corresponding with the number ofcutter-holders. Asec- 0nd disk, 0, with the same number of correspondingrecesses, is arranged above the disk in, and is capable of beingadjusted by means of the screw p, or, if the same should be worn out,can be readily replaced by a new disk. In order to obtain an exactmovement of the slides c, aperforated sliding cube or other suitablepiece of metal, q, is inserted in each of these recesses, and isfastened to the slide by means of the screw 1'. All these parts restupon the base-plate a, and in an externally arranged tube, 1), which canbe formed of one 2 of the frame, and is held in the upward position by acounter-weight. A pivot, a, is adjustably arranged in the upper end ofthe slide y, to which said pivot a connecting-rod, b, is fixed, which iseccentrically screwed to a disk, 0, arranged upon the end of the shaft(1'. This said shaft carries a fly-wheel, f, which also serves asstrap-drum, and by which the machine is set in operation. The said shaftd also carries a cam, g, the groove of which serves to receive the pinor pivot of a twoarmed lever, t", which moves around the fulcrum h. Anadjustable connecting-rod, Z, is arranged in a slot, at the lower end ofthe lever 'Z, and is at its opposite end fixed in a slot of the lever m,which latter" is arranged upon the fulcrum n, and carries a pawl, 0,which gears with the ratchet-wheel p, and causes the partial rotation ofthe same. The ratchet-wheel p is rigidly connected to the bevel-wheela", Fig. 6, which gears into the bevel-wheel 8, arranged upon the axist, carried in the bearing a. A worm or endless screw, o, operating upona toothed sector, a is also arranged upon the axis t, the said toothedsector a being firmly secured to the inner tube, Z, by means of a ringor collar, and provided with a handle, 10. The end of the shaft t iscarried by a lever, w,and is held in position by the two claws 3/ 3 sothat the worm or endless screw is kept in gear with the toothed sectora.

The operation of planing in a vertical direction is carried out ashereinafter described.

When planingin avertical direction, two cutters are employed, of whichthe one cutter, 6, serves as a gou ging-tool,while the second cutter, e,acts as asmoothing chisel or tool. These cutters are first placed inproper positionto each other and rigidly fixed by a clamp, s, afterwhich they are brought into nearly their required positions in thecutter-holder and fixed in the latter by the screws 9, while thecutterholder is accurately adjusted by the set'screws k and fixed in theslide by the screwf. If the shaft d is caused to rotate, an upward anddownward gliding movement is imparted to the slide 3 by means of theconnecting-rod 1/ operating eccentrically upon the disk 0', so that theobject, w, operated upon is carried to and fro past the cut-ters. Afterevery double stroke an intermittent rotating movement of a given extentisimparted to the tube Z by the action of the earn the lever m, and thescrewgear 12 a, whereby and by means of the parts q, located in therecesses and fastened to the slides 0, these said slides, and with themthe cutter-holders d, are moved in a lateral direction to correspondwith the breadth of the chip or metal removed or planed from the objecttreated. When the article operated upon is finished, the claw y ispressed back and the worm v uncoupled by means of the lever 00. Bysimply rotating the tube Z the whole system of cutter-holders can now bereturned to its original position without the necessity of putting thesaid cutter-holders separately back to the position they assume at thecommencement of the operation. A brake-strap, b, arranged upon the shaftd, will bring the machine to an immediate stop when the connecting-rod cis operated on by a treadle arranged within the frame. The employment oftwo cutters for planing in a vertical direction also has the advantagethat in the event of the breaking of the cutter or gouging-tool e anexchange of the same is not necessary, as in such an event the cutter orsmoothing-chisel e will continue to do the work until the object isfinished. I

For planing in a horizontal direction the mechanism for imparting motlvepower, as shown in Figs. 5 and 7, is employed.

As before described, the mandrel t is held fast by the clamp 00 of theslide y, which 18 also kept in a raised position by the counterweight aand guided in the grooves z of the frame. The movements of the slidemust now take place in a slow and accurately-regulated manner, which isinsured by the employment of a vertical screw-spindle, 0?, which is ableto rotate vertically in its bearings in the frame, but is unable toshift from its position.

The screw nut f fastened to the slide, bears upon the aforementionedspindle, sothat when the latter rotates the slide is moved up and down.A bevel-wheel, 9 is also arranged at the lower end of the screw-spindle,and is in gear with another bevel-wheel arranged upon the axis h. Aratchet-wheel, 1 1s fixed to the axis h outside the frame, into whichsaid wheel the pawl 76, attached to the. doublearmed lever Z gears. Aconnectingrod, m engages with the lever Z said. connecting-rod being adjustably arranged in the slot at of the two-armed lever 0 the lower endof which is guided in a cam-groove,1r, and effects an oscillatingmovement, by means of which an intermittent risingmovement of the slide9 is effected.

The grooved cam is arranged upon the dr1vingshaft Q2, which also carriesthe step-drum T The reverse side of the aforementioned grooved cam isprovided with a swallow-tail slot, 8 in which a rod, 1 is eccentricallyand adjustably'secured in suitable manner, whlch said rod engages with aslide, it", gliding 1n the bearings a. An arm, 10, is attached to therigid pivot 12 of the slide i and connected with the arm 00 whichembraces the central tube, Z, so as to produce an oscillating movementof the tubeZ at each doublestroke of the slide i When planing in ahorizontal direction,the operation of the machine is as follows: Asbefore described, the cutter or tool holders are put in their properpositions. The tube Z 1mparts a reciprocating movement to the tube 0,and consequently to the cutter or tool holders, so that the cutters arepassed to and fro along the surface of the object under treatment. Afterevery double stroke the stem or mandrel t is raised by the screw d adistance equal to the breadth of the parings or cuttin gs,

which can be accurately regulated. The handwheel 2 serves to secure anaccurate adjustment of the object to be treated with regard to itsposition to the cutters or tools.

In order to remove the parings or cuttings from the interior of themachine during the working of thesame, the'tool-holders b and thebase-plate a are provided with a number of slots, through which the saidparings or cuttings, which also pass out from the machine through thetube 1, are removed. A vessel with soap-water may be placed in thecenter of the system of cutter or tool holders for the purpose ofcooling and greasing the cutters or tools.

Having now described my said invention and in what manner the same is tobe carried into effect, I declare that what I claim is In a machine fordressing nuts, 850., the combinatiomwith a vertically-reciprocatingmandrel for carrying the material to be operated upon, of a series ofslide-rests arranged rad1- ally around the mandrel and carryingradiallyadjustable cutterholders and cutters, with mechanism for givingthe slide-rests a lateral reciprocating movement, said mechanismconsisting of a tubular spindle passing upcentrally through the frame ofthe machine, and carrying a disk at its upper end having a notch in itsperiphery for each slide-rest, and a block fixed to each slide-rest andengaging said notches, substantially as and for the purpose set forth.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

THEODOR BAUM. Witnesses:

ANTHONY STEFFEN,

B. ROI.

